Steginoporella cf. reingruberhohensis Zágoršek, 2003

Steginoporella cf. reingruberhohensis Zágoršek, 2003 View in CoL

( Fig. 3A View FIG )

Ξ Steginoporella reingruberhohensis Zágoršek, 2003: 142 View in CoL , pl. 15, figs 3, 4.

Non Cellaria haidingeri Reuss, 1848: 60 , pl. 7, fig. 30.

Eschara reussi Stoliczka, 1862: 88 View in CoL .

Non Steginoporella cucullata Pouyet & David, 1979: 774 View in CoL , fig. 3, pl. 3, fig. 10 (cum syn.).

MATERIAL EXAMINED. — Two syntypes of Eschara reussi registered as 1859/0026/0136. Ŋe chosen lectotype (designated here) is illustrated in Fig. 3A. View FIG

DIAGNOSIS. — Colony erect, columnar, multiserial, large with oval to circular transverse section. Autozooecia oval

to hexagonal, arranged in nine regular longitudinal rows. Mural rim wide and smooth.Cryptocyst shallow, perforated by 7-12 large pores but lacking opesiules. Orifice sunken, subcircular in shape, situated on the end of short peristome, bordered by a thin low rim. Ŋe vicarious avicularia (Bzooecia) up to twice as long and wide as autozooecia, with broad, truncate distal margin; cryptocyst perforated by about tenpores; palate wider than long, smooth, shallowly concave.Owing to poor preservation, opesial characters of vicariousaviculariaaresomewhatequivocalbutpolypidetube is well developed, its orifice similar to that of autozooecia.

REMARKS

Zágoršek (2003) synonymised this species with Steginoporella haidingeri ( sensu Reuss 1848). SEM study of Stoliczka’s material, however, shows features more reminiscent of Steginoporella reingruberhohensis Zágoršek, 2003 . Ŋe main difference is the number of cryptocystal perforations. Whereas S. haidingeri usually has about 20-30 pores, S. reingruberhohensis has about 10-15, which is closer to the number (7- 12) in Eschara reussi . Owing to the unclear cryptocystal features of the vicarious avicularia, these two species cannot presently be synonymised and the status of Eschara reussi remains unclear.

David & Pouyet (1974) and Pouyet & David (1979) synonymised Eschara reussi Stoliczka, 1862 with Steginoporella cucullata (Reuss, 1848) . As already discussed by Zágoršek (2003), S. cucullata has a very wide mural rim, a consistently preserved pair of circular opesiules, and a wide vicarious avicularian palate. It is, moreover, a Miocene species.